rust/library/alloc/src/prelude/v1.rs

//! The first version of the prelude of `alloc` crate.
//!
//! See the [module-level documentation](../index.html) for more.

#![unstable(feature = "alloc_prelude", issue = "58935")]

#[unstable(feature = "alloc_prelude", issue = "58935")]
pub use crate::borrow::ToOwned;
#[unstable(feature = "alloc_prelude", issue = "58935")]
pub use crate::boxed::Box;
#[unstable(feature = "alloc_prelude", issue = "58935")]
pub use crate::string::{String, ToString};
#[unstable(feature = "alloc_prelude", issue = "58935")]
pub use crate::vec::Vec;
Move alloc::prelude::* to alloc::prelude::v1, make alloc a subset of std This was one of the unresolved questions of https://github.com/rust-lang/rfcs/pull/2480. As the RFC says this is maybe not useful in the sense that we are unlikely to ever have a second version, but making the crate a true subset makes one less issue to think about if we stabilize it and later want to merge standard library crates and have Cargo feature flags to enable or disable parts of the `std` crate. See also discussion in https://github.com/rust-lang/rust/pull/58175 2019-03-05 09:58:47 +01:00			//! The first version of the prelude of `alloc` crate.
Add the `alloc::prelude` module It contains the re-exports that are in `std::prelude::v1` but not in `core::prelude::v1`. Calling it prelude is somewhat of a misnomer since (unlike those modules in `std` or `core`) its contents are never implicitly imported in modules. Rather it is intended to be used with an explicit glob import like `use alloc::prelude::*;`. However there is precedent for the same misnomer with `std::io::prelude`, for example. This new module is unstable with the same feature name as the `alloc` care. They are proposed for stabilization together in RFC https://github.com/rust-lang/rfcs/pull/2480 2018-07-07 00:43:11 +02:00			`//!`
Move alloc::prelude::* to alloc::prelude::v1, make alloc a subset of std This was one of the unresolved questions of https://github.com/rust-lang/rfcs/pull/2480. As the RFC says this is maybe not useful in the sense that we are unlikely to ever have a second version, but making the crate a true subset makes one less issue to think about if we stabilize it and later want to merge standard library crates and have Cargo feature flags to enable or disable parts of the `std` crate. See also discussion in https://github.com/rust-lang/rust/pull/58175 2019-03-05 09:58:47 +01:00			`//! See the [module-level documentation](../index.html) for more.`
Add the `alloc::prelude` module It contains the re-exports that are in `std::prelude::v1` but not in `core::prelude::v1`. Calling it prelude is somewhat of a misnomer since (unlike those modules in `std` or `core`) its contents are never implicitly imported in modules. Rather it is intended to be used with an explicit glob import like `use alloc::prelude::*;`. However there is precedent for the same misnomer with `std::io::prelude`, for example. This new module is unstable with the same feature name as the `alloc` care. They are proposed for stabilization together in RFC https://github.com/rust-lang/rfcs/pull/2480 2018-07-07 00:43:11 +02:00
Rename the feature gate for alloc::prelude … to separate it from that of the crate. New tracking issue: https://github.com/rust-lang/rust/issues/58935 2019-03-05 11:47:52 +01:00			`#![unstable(feature = "alloc_prelude", issue = "58935")]`
Add the `alloc::prelude` module It contains the re-exports that are in `std::prelude::v1` but not in `core::prelude::v1`. Calling it prelude is somewhat of a misnomer since (unlike those modules in `std` or `core`) its contents are never implicitly imported in modules. Rather it is intended to be used with an explicit glob import like `use alloc::prelude::*;`. However there is precedent for the same misnomer with `std::io::prelude`, for example. This new module is unstable with the same feature name as the `alloc` care. They are proposed for stabilization together in RFC https://github.com/rust-lang/rfcs/pull/2480 2018-07-07 00:43:11 +02:00
Format liballoc with rustfmt 2019-11-29 19:30:49 -08:00			`#[unstable(feature = "alloc_prelude", issue = "58935")]`
			`pub use crate::borrow::ToOwned;`
			`#[unstable(feature = "alloc_prelude", issue = "58935")]`
			`pub use crate::boxed::Box;`
			`#[unstable(feature = "alloc_prelude", issue = "58935")]`
			`pub use crate::string::{String, ToString};`
			`#[unstable(feature = "alloc_prelude", issue = "58935")]`
			`pub use crate::vec::Vec;`